Vitamin D status of Thai school children

This dataset includes the following: demographic, anthropometric and vitamin D status (25-hydroxyvitamin D, 1,25-dihydroxyvitamin D and parathyroid hormone concentrations) of a group of northeast Thai schoolchildre

Linear regression model of factors associated with serum 25-hydroxyvitamin D (nmol/L), 1,25-dihydroxyvitamin D (pmol/L) and parathyroid hormone concentrations (ng/L) among Thai schoolchildren aged 6–13 y¹.

1<p>Effect sizes are ratios of geometric means, accompanied by 95% CIs and <i>P</i>-values.</p>2<p>Adjusted for variables with <i>P</i>≤0.25 in univariate analysis.</p>3<p>R² of the whole model for 25OHD: 0.24; for 1,25(OH)₂D: 0.13; for PTH: 0.20.</p>4<p>At the mean age (9.9 y).</p

Relation between age in years and serum 25-hydroxyvitamin D (nmol/L) concentrations stratified by gender.

<p>Relation between age in years and serum 25-hydroxyvitamin D (nmol/L) concentrations stratified by gender.</p

Serum 25-hydroxyvitamin D, 1,25-dihyroxyvitamin D and parathyroid hormone concentrations in school-aged children by sex and age group¹.

1<p>Values are geometric mean ± geometric SD. <i>Note:</i> Geometric SD is a factor, not a quantity. Powers of the geometric SD can be either multiplied by (or divided into) the geometric mean to determine the set of values that lie <i>n</i> geometric SDs from the mean.</p

Selected characteristics of the study sample¹.

1<p>Values are geometric mean ± geometric SD or median (IQR) unless specified. <i>Note</i>: Geometric SD is a factor, not a quantity. <i>Powers</i> of the geometric SD can be either multiplied by (or divided into) the geometric mean to determine the set of values that lie <i>n</i> geometric SDs from the mean.</p>2<p>WHO Reference 2007 does not provide weight-for-age charts beyond 10 years of age.</p

Parenting style and family type, but not child temperament, are associated with television viewing time in children at two years of age

<div><p>Objectives</p><p>Despite the American Academy of Pediatrics (AAP) recommending that electronic media be avoided in children under two years of age, screen use is common in infants and toddlers. The aims of this study were to determine how parenting style, infant temperament, and family type are associated with television viewing in two-year-old children.</p><p>Study design</p><p>Participants were from the Prevention of Overweight in Infancy (POI) randomized controlled trial (n = 802) (Dunedin, New Zealand). Demographic information was collected at baseline (late pregnancy), and television and other screen time assessed by questionnaire at 24 months of age. Parenting style (Parenting Practices Questionnaire), infant temperament (Colorado Childhood Temperament Inventory), and family type (7 categories) were reported by both parents.</p><p>Results</p><p>Data were available for 487 participants (61% of the original participants). Median television viewing was relatively low at 21 minutes per day, or 30 minutes in those watching television (82%). Children who watched television played with mobile phones (12% of children) or iPads/tablets (22% of children) more frequently than children who did not (6% of children). In terms of parenting style, children of more authoritarian mothers (β = 17, 95% CI: 6–27 minutes), more authoritarian partners (β = 14, 95% CI: 2–26 minutes), or more permissive mothers (β = 10, 95% CI: 3–17 minutes) watched significantly more television. No significant relationships were observed between child temperament and time watching television after adjustment for confounding variables. Children from “active” families (as rated by partners) watched 29 minutes less television each day (<i>P</i> = 0.002).</p><p>Conclusions</p><p>Parenting style and family type were associated with television viewing time in young children, whereas child temperament was not.</p></div

⁸⁷Sr/⁸⁶Sr ratios for human dental enamel samples from the Pacific Islands.

<p>Averaged values for volcanic basalt and seawater are provided, from Faure [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0137616#pone.0137616.ref013" target="_blank">13</a>]. Samples included in order of size: Fiji (N = 61, brown triangles; [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0137616#pone.0137616.ref014" target="_blank">14</a>]), Nebira (N = 27, blue circles; [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0137616#pone.0137616.ref015" target="_blank">15</a>]), Teouma (N = 17, grey circles; [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0137616#pone.0137616.ref016" target="_blank">16</a>]), Wairau Bar (N = 24, yellow stars; [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0137616#pone.0137616.ref001" target="_blank">1</a>]), Watom (N = 15, red circles; [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0137616#pone.0137616.ref017" target="_blank">17</a>]), Mangaia (N = 12, maroon diamonds; [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0137616#pone.0137616.ref001" target="_blank">1</a>]), Tongatapu (N = 12, black circles; [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0137616#pone.0137616.ref018" target="_blank">18</a>]), Sohano (N = 11, pink circles; [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0137616#pone.0137616.ref018" target="_blank">18</a>]), Anir Islands (N = 5, orange circles; [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0137616#pone.0137616.ref019" target="_blank">19</a>]), Tanga Islands (N = 5, green circles; [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0137616#pone.0137616.ref017" target="_blank">17</a>]).</p

Characteristics of the study sample at baseline (n = 802).

<p>Characteristics of the study sample at baseline (n = 802).</p

Frequency of children’s use of different devices, by whether or not the American Academy of Pediatrics guideline for television viewing was met.

<p>Frequency of children’s use of different devices, by whether or not the American Academy of Pediatrics guideline for television viewing was met.</p

Flow of POI study participants through to 24 months of age.

<p>Flow of POI study participants through to 24 months of age.</p